Portion of a printed circuit board



FIG. 1 is a front, bottom and right side perspective view of a portion of a printed circuit board, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a left side elevational view thereof;

FIG. 8 is an enlarged view thereof showing the portion marked with 8—8 in FIG. 6; and,

FIG. 9 is an enlarged view thereof showing the portion marked with 9—9 in FIG. 5.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portion of a printed circuit board, as shown and described. 